mirror of
https://github.com/sbrl/Pepperminty-Wiki.git
synced 2024-12-22 13:45:02 +00:00
Starbeamrainbowlabs
0744498570
This is especialyl important for the exteernal renderer cache directory, which is assumed to contain exclusively valid rendered outputs.
1106 lines
42 KiB
PHP
1106 lines
42 KiB
PHP
<?php
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register_module([
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"name" => "Parsedown",
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"version" => "0.10",
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"author" => "Emanuil Rusev & Starbeamrainbowlabs",
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"description" => "An upgraded (now default!) parser based on Emanuil Rusev's Parsedown Extra PHP library (https://github.com/erusev/parsedown-extra), which is licensed MIT. Please be careful, as this module adds some weight to your installation.",
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"extra_data" => [
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/********** Parsedown versions **********
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* Parsedown Core: 1.8.0-beta-7 *
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* Parsedown Extra: 0.8.0-beta-1 *
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* Parsedown Extreme: 0.1.6 *
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****************************************/
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"Parsedown.php" => "https://raw.githubusercontent.com/erusev/parsedown/fe7a50eceb4a3c867cc9fa9c0aa906b1067d1955/Parsedown.php",
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"ParsedownExtra.php" => "https://raw.githubusercontent.com/erusev/parsedown-extra/f21b40a1973b6674903a6da9857ee215e8839f96/ParsedownExtra.php",
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"ParsedownExtreme.php" => "https://raw.githubusercontent.com/BenjaminHoegh/parsedown-extreme/adae4136534ad1e4159fe04c74c4683681855b84/ParsedownExtreme.php"
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// TODO: Add Parsedown Extreme support
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],
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"id" => "parser-parsedown",
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"code" => function() {
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global $settings;
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$parser = new PeppermintParsedown();
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$parser->setInternalLinkBase("?page=%s");
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add_parser("parsedown", function($source, $untrusted) use ($parser) {
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global $settings;
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$parser->setsafeMode($untrusted || $settings->all_untrusted);
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$parser->setMarkupEscaped($settings->clean_raw_html);
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$result = $parser->text($source);
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return $result;
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}, function($source) {
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global $version, $settings, $pageindex;
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$id_text = "$version|$settings->parser|$source";
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// Find template includes
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preg_match_all(
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'/\{\{\s*([^|]+)\s*(?:\|[^}]*)?\}\}/',
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$source, $includes
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);
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foreach($includes[1] as $include_pagename) {
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if(empty($pageindex->$include_pagename))
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continue;
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$id_text .= "|$include_pagename:" . parsedown_pagename_resolve(
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$pageindex->$include_pagename->lastmodified
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);
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}
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return str_replace(["+","/"], ["-","_"], base64_encode(hash(
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"sha256",
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$id_text,
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true
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)));
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});
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add_action("parsedown-render-ext", function() {
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global $settings, $env, $paths;
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if(!$settings->parser_ext_renderers_enabled) {
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http_response_code(403);
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header("content-type: image/png");
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imagepng(errorimage("Error: External diagram renderer support\nhas been disabled on $settings->sitename.\nTry contacting {$settings->admindetails_name}, $settings->sitename's administrator."));
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exit();
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}
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if(!isset($_GET["source"])) {
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http_response_code(400);
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header("content-type: image/png");
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imagepng(errorimage("Error: No source text \nspecified."));
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exit();
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}
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if(!isset($_GET["language"])) {
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http_response_code(400);
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header("content-type: image/png");
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imagepng(errorimage("Error: No external renderer \nlanguage specified."));
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exit();
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}
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$source = $_GET["source"];
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$language = $_GET["language"];
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if(!isset($settings->parser_ext_renderers->$language)) {
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$message = "Error: Unknown language {$_GET["language"]}.\nSupported languages:\n";
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foreach($settings->parser_ext_renderers as $language => $spec)
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$message .= "$spec->name ($language)\n";
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http_response_code(400);
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header("content-type: image/png");
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imagepng(errorimage(trim($message)));
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exit();
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}
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$renderer = $settings->parser_ext_renderers->$language;
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$cache_id = hash("sha256",
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hash("sha256", $language) .
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hash("sha256", $source) .
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($_GET["immutable_key"] ?? "")
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);
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$cache_file_location = "{$paths->cache_directory}/render_ext/$cache_id." . system_mime_type_extension($renderer->output_format);
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// If it exists on disk already, then serve that instead
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if(file_exists($cache_file_location)) {
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header("cache-control: public, max-age=31536000, immutable");
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header("content-type: $renderer->output_format");
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header("content-length: " . filesize($cache_file_location));
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header("x-cache: render_ext/hit");
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readfile($cache_file_location);
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exit();
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}
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$source_handle = tmpfile();
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fwrite($source_handle, $source);
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fseek($source_handle, 0);
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// Create the cache directory if doesn't exist already
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if(!file_exists(dirname($cache_file_location)))
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mkdir(dirname($cache_file_location), 0750, true);
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$dest_handle = fopen($cache_file_location, "wb+");
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$error_text_handle = tmpfile();
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$start_time = microtime(true);
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$process_handle = proc_open(
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$renderer->cli,
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[
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0 => $source_handle,
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1 => $dest_handle,
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2 => $error_text_handle
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],
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$pipes,
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null, // working directory
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null // environment variables
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);
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if(!is_resource($process_handle)) {
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fclose($dest_handle);
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fclose($source_handle);
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fclose($error_text_handle);
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unlink($cache_file_location);
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http_response_code(503);
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header("cache-control: no-cache, no-store, must-revalidate");
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header("content-type: image/png");
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imagepng(errorimage("Error: Failed to start external renderer.\nIs $renderer->name installed?"));
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exit();
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}
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// Wait for it to exit
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$exit_code = proc_close($process_handle);
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fclose($dest_handle);
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fclose($source_handle);
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$time_taken = round((microtime(true) - $start_time) * 1000, 2);
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if($exit_code !== 0) {
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fseek($error_text_handle, 0);
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$error_details = stream_get_contents($error_text_handle);
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// Delete the cache file, which is guaranteed to exist because
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// we pre-emptively create it above
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unlink($cache_file_location);
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http_response_code(503);
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header("content-type: image/png");
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imagepng(errorimage(
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"Error: The external renderer ($renderer->name)\nexited with code $exit_code.\nDetails:\n" . wordwrap($error_details)
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));
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exit();
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}
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header("cache-control: public, max-age=31536000, immutable");
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header("content-type: $renderer->output_format");
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header("content-length: " . filesize($cache_file_location));
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header("x-cache: render_ext/miss, renderer took {$time_taken}ms");
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readfile($cache_file_location);
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});
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/*
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* ███████ ████████ █████ ████████ ██ ███████ ████████ ██ ██████ ███████
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* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
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* ███████ ██ ███████ ██ ██ ███████ ██ ██ ██ ███████
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* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
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* ███████ ██ ██ ██ ██ ██ ███████ ██ ██ ██████ ███████
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*/
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statistic_add([
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"id" => "wanted-pages",
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"name" => "Wanted Pages",
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"type" => "page",
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"update" => function($old_stats) {
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global $pageindex, $env;
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$result = new stdClass(); // completed, value, state
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$pages = [];
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foreach($pageindex as $pagename => $pagedata) {
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if(!file_exists($env->storage_prefix . $pagedata->filename))
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continue;
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$page_content = file_get_contents($env->storage_prefix . $pagedata->filename);
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$page_links = PeppermintParsedown::extract_page_names($page_content);
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foreach($page_links as $linked_page) {
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// We're only interested in pages that don't exist
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if(!empty($pageindex->$linked_page)) continue;
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if(empty($pages[$linked_page]))
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$pages[$linked_page] = 0;
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$pages[$linked_page]++;
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}
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}
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arsort($pages);
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$result->value = $pages;
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$result->completed = true;
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return $result;
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},
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"render" => function($stats_data) {
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$result = "<h2>$stats_data->name</h2>\n";
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$result .= "<table class='wanted-pages'>\n";
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$result .= "\t<tr><th>Page Name</th><th>Linking Pages</th></tr>\n";
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foreach($stats_data->value as $pagename => $linking_pages) {
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$result .= "\t<tr><td>$pagename</td><td>$linking_pages</td></tr>\n";
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}
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$result .= "</table>\n";
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return $result;
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}
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]);
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statistic_add([
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"id" => "orphan-pages",
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"name" => "Orphan Pages",
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"type" => "page-list",
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"update" => function($old_stats) {
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global $pageindex, $env;
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$result = new stdClass(); // completed, value, state
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$pages = [];
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foreach($pageindex as $pagename => $pagedata) {
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if(!file_exists($env->storage_prefix . $pagedata->filename))
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continue;
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$page_content = file_get_contents($env->storage_prefix . $pagedata->filename);
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$page_links = PeppermintParsedown::extract_page_names($page_content);
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foreach($page_links as $linked_page) {
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// We're only interested in pages that exist
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if(empty($pageindex->$linked_page)) continue;
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$pages[$linked_page] = true;
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}
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}
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$orphaned_pages = [];
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foreach($pageindex as $pagename => $page_data) {
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if(empty($pages[$pagename]))
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$orphaned_pages[] = $pagename;
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}
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$sorter = new Collator("");
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$sorter->sort($orphaned_pages);
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$result->value = $orphaned_pages;
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$result->completed = true;
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return $result;
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}
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]);
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statistic_add([
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"id" => "most-linked-to-pages",
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"name" => "Most Linked-To Pages",
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"type" => "page",
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"update" => function($old_stats) {
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global $pageindex, $env;
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$result = new stdClass(); // completed, value, state
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$pages = [];
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foreach($pageindex as $pagename => $pagedata) {
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if(!file_exists($env->storage_prefix . $pagedata->filename))
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continue;
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$page_content = file_get_contents($env->storage_prefix . $pagedata->filename);
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$page_links = PeppermintParsedown::extract_page_names($page_content);
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foreach($page_links as $linked_page) {
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// We're only interested in pages that exist
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if(empty($pageindex->$linked_page)) continue;
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if(empty($pages[$linked_page]))
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$pages[$linked_page] = 0;
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$pages[$linked_page]++;
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}
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}
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arsort($pages);
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$result->value = $pages;
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$result->completed = true;
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return $result;
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},
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"render" => function($stats_data) {
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global $pageindex;
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$result = "<h2>$stats_data->name</h2>\n";
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$result .= "<table class='most-linked-to-pages'>\n";
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$result .= "\t<tr><th>Page Name</th><th>Linking Pages</th></tr>\n";
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foreach($stats_data->value as $pagename => $link_count) {
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$pagename_display = !empty($pageindex->$pagename->redirect) && $pageindex->$pagename->redirect ? "<em>$pagename</em>" : $pagename;
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$result .= "\t<tr><td><a href='?page=" . rawurlencode($pagename) . "'>$pagename_display</a></td><td>$link_count</td></tr>\n";
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}
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$result .= "</table>\n";
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return $result;
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}
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]);
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add_help_section("20-parser-default", "Editor Syntax",
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"<p>$settings->sitename's editor uses an extended version of <a href='http://parsedown.org/'>Parsedown</a> to render pages, which is a fantastic open source Github flavoured markdown parser. You can find a quick reference guide on Github flavoured markdown <a href='https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet'>here</a> by <a href='https://github.com/adam-p/'>adam-p</a>, or if you prefer a book <a href='https://www.gitbook.com/book/roachhd/master-markdown/details'>Mastering Markdown</a> by KB is a good read, and free too!</p>
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<h3>Tips</h3>
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<ul>
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<li>Put 2 spaces at the end of a line to add a soft line break. Leave a blank line to add a head line break (i.e. a new paragraph).</li>
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<li>You can add an id to a header that you can link to. Put it in curly braces after the heading name like this: <code># Heading Name {#HeadingId}</code>. Then you can link to like like this: <code>[[Page name#HeadingId}]]</code>. You can also link to a heading id on the current page by omitting the page name: <code>[[#HeadingId]]</code>.</li>
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</ul>
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<h3>Extra Syntax</h3>
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<p>$settings->sitename's editor also supports some extra custom syntax, some of which is inspired by <a href='https://mediawiki.org/'>Mediawiki</a>.
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<table>
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<tr><th style='width: 40%'>Type this</th><th style='width: 20%'>To get this</th><th>Comments</th></th>
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<tr><td><code>[[Internal link]]</code></td><td><a href='?page=Internal%20link'>Internal Link</a></td><td>An internal link.</td></tr>
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<tr><td><code>[[Display Text|Internal link]]</code></td><td><a href='?page=Internal%20link'>Display Text</a></td><td>An internal link with some display text.</td></tr>
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<tr><td><code></code></td><td><img src='http://example.com/path/to/image.png' alt='Alt text' style='float: right; max-width: 256px; max-height: 256px;' /></td><td>An image floating to the right of the page that fits inside a 256px x 256px box, preserving aspect ratio.</td></tr>
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<tr><td><code></code></td><td><figure><img src='http://example.com/path/to/image.png' alt='Alt text' style='max-width: 256px; max-height: 256px;' /><figcaption>Alt text</figcaption></figure></td><td>An image with a caption that fits inside a 256px x 256px box, preserving aspect ratio. The presence of the word <code>caption</code> in the regular braces causes the alt text to be taken and displayed below the image itself.</td></tr>
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<tr><td><code></code></td><td><img src='index.php?action=preview&page=Files/Cheese.png' alt='Alt text' style='' /></td><td>An example of the short url syntax for images. Simply enter the page name of an image (or video / audio file), and Pepperminty Wiki will sort out the url for you.</td></tr>
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</table>
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<p>Note that the all image image syntax above can be mixed and matched to your liking. The <code>caption</code> option in particular must come last or next to last.</p>
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<h4>Templating</h4>
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<p>$settings->sitename also supports including one page in another page as a <em>template</em>. The syntax is very similar to that of Mediawiki. For example, <code>{{Announcement banner}}</code> will include the contents of the \"Announcement banner\" page, assuming it exists.</p>
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<p>You can also use variables. Again, the syntax here is very similar to that of Mediawiki - they can be referenced in the included page by surrrounding the variable name in triple curly braces (e.g. <code>{{{Announcement text}}}</code>), and set when including a page with the bar syntax (e.g. <code>{{Announcement banner | importance = high | text = Maintenance has been planned for tonight.}}</code>). Currently the only restriction in templates and variables is that you may not include a closing curly brace (<code>}</code>) in the page name, variable name, or value.</p>
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<h5>Special Variables</h5>
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<p>$settings->sitename also supports a number of special built-in variables. Their syntax and function are described below:</p>
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<table>
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<tr><th>Type this</th><th>To get this</th></tr>
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<tr><td><code>{{{@}}}</code></td><td>Lists all variables and their values in a table.</td></tr>
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<tr><td><code>{{{#}}}</code></td><td>Shows a 'stack trace', outlining all the parent includes of the current page being parsed.</td></tr>
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<tr><td><code>{{{~}}}</code></td><td>Outputs the requested page's name.</td></tr>
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<tr><td><code>{{{*}}}</code></td><td>Outputs a comma separated list of all the subpages of the current page.</td></tr>
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<tr><td><code>{{{+}}}</code></td><td>Shows a gallery containing all the files that are sub pages of the current page.</td></tr>
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</table>");
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}
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]);
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require_once("$paths->extra_data_directory/parser-parsedown/Parsedown.php");
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require_once("$paths->extra_data_directory/parser-parsedown/ParsedownExtra.php");
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require_once("$paths->extra_data_directory/parser-parsedown/ParsedownExtreme.php");
|
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|
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/**
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* Attempts to 'auto-correct' a page name by trying different capitalisation
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* combinations.
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* @param string $pagename The page name to auto-correct.
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* @return string The auto-corrected page name.
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*/
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function parsedown_pagename_resolve($pagename) {
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global $pageindex;
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// If the page doesn't exist, check varying different
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// capitalisations to see if it exists under some variant.
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if(!empty($pageindex->$pagename))
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return $pagename;
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$pagename = ucfirst($pagename);
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if(!empty($pageindex->$pagename))
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return $pagename;
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$pagename = ucwords($pagename);
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return $pagename;
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}
|
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|
|
/*
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|
* ██████ █████ ██████ ███████ ███████ ██████ ██████ ██ ██ ███ ██
|
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* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ████ ██
|
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* ██████ ███████ ██████ ███████ █████ ██ ██ ██ ██ ██ █ ██ ██ ██ ██
|
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* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ███ ██ ██ ██ ██
|
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* ██ ██ ██ ██ ██ ███████ ███████ ██████ ██████ ███ ███ ██ ████
|
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*
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* ███████ ██ ██ ████████ ███████ ███ ██ ███████ ██ ██████ ███ ██ ███████
|
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* ██ ██ ██ ██ ██ ████ ██ ██ ██ ██ ██ ████ ██ ██
|
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* █████ ███ ██ █████ ██ ██ ██ ███████ ██ ██ ██ ██ ██ ██ ███████
|
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* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
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* ███████ ██ ██ ██ ███████ ██ ████ ███████ ██ ██████ ██ ████ ███████
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*/
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/**
|
|
* The Peppermint-flavoured Parsedown parser.
|
|
*/
|
|
class PeppermintParsedown extends ParsedownExtreme
|
|
{
|
|
/**
|
|
* The base directory with which internal links will be resolved.
|
|
* @var string
|
|
*/
|
|
private $internalLinkBase = "./%s";
|
|
|
|
/**
|
|
* The parameter stack. Used for recursive templating.
|
|
* @var array
|
|
*/
|
|
protected $paramStack = [];
|
|
|
|
/**
|
|
* Creates a new Peppermint Parsedown instance.
|
|
*/
|
|
function __construct()
|
|
{
|
|
parent::__construct();
|
|
|
|
// Prioritise our internal link parsing over the regular link parsing
|
|
array_unshift($this->InlineTypes["["], "InternalLink");
|
|
// Prioritise our image parser over the regular image parser
|
|
array_unshift($this->InlineTypes["!"], "ExtendedImage");
|
|
|
|
$this->inlineMarkerList .= "{";
|
|
if(!isset($this->InlineTypes["{"]) or !is_array($this->InlineTypes["{"]))
|
|
$this->InlineTypes["{"] = [];
|
|
$this->InlineTypes["{"][] = "Template";
|
|
}
|
|
|
|
/*
|
|
* ████████ ███████ ███ ███ ██████ ██ █████ ████████ ██ ███ ██ ██████
|
|
* ██ ██ ████ ████ ██ ██ ██ ██ ██ ██ ██ ████ ██ ██
|
|
* ██ █████ ██ ████ ██ ██████ ██ ███████ ██ ██ ██ ██ ██ ██ ███
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
* ██ ███████ ██ ██ ██ ███████ ██ ██ ██ ██ ██ ████ ██████
|
|
*/
|
|
/**
|
|
* Parses templating definitions.
|
|
* @param string $fragment The fragment to parse it out from.
|
|
*/
|
|
protected function inlineTemplate($fragment)
|
|
{
|
|
global $env, $pageindex;
|
|
|
|
// Variable parsing
|
|
if(preg_match("/\{\{\{([^}]+)\}\}\}/", $fragment["text"], $matches))
|
|
{
|
|
$params = [];
|
|
if(!empty($this->paramStack))
|
|
{
|
|
$stackEntry = array_slice($this->paramStack, -1)[0];
|
|
$params = !empty($stackEntry) ? $stackEntry["params"] : false;
|
|
}
|
|
|
|
$variableKey = trim($matches[1]);
|
|
|
|
$variableValue = false;
|
|
switch ($variableKey)
|
|
{
|
|
case "@": // Lists all variables and their values
|
|
if(!empty($params)) {
|
|
$variableValue = "<table>
|
|
<tr><th>Key</th><th>Value</th></tr>\n";
|
|
foreach($params as $key => $value)
|
|
{
|
|
$variableValue .= "\t<tr><td>" . $this->escapeText($key) . "</td><td>" . $this->escapeText($value) . "</td></tr>\n";
|
|
}
|
|
$variableValue .= "</table>";
|
|
}
|
|
else {
|
|
$variableValue = "<em>(no parameters have been specified)</em>";
|
|
}
|
|
break;
|
|
case "#": // Shows a stack trace
|
|
$variableValue = "<ol start=\"0\">\n";
|
|
$variableValue .= "\t<li>$env->page</li>\n";
|
|
foreach($this->paramStack as $curStackEntry)
|
|
{
|
|
$variableValue .= "\t<li>" . $curStackEntry["pagename"] . "</li>\n";
|
|
}
|
|
$variableValue .= "</ol>\n";
|
|
break;
|
|
case "~": // Show requested page's name
|
|
if(!empty($this->paramStack))
|
|
$variableValue = $this->escapeText($env->page);
|
|
break;
|
|
case "*": // Lists subpages
|
|
$subpages = get_subpages($pageindex, $env->page);
|
|
$variableValue = [];
|
|
foreach($subpages as $pagename => $depth)
|
|
{
|
|
$variableValue[] = $pagename;
|
|
}
|
|
$variableValue = implode(", ", $variableValue);
|
|
if(strlen($variableValue) === 0)
|
|
$variableValue = "<em>(none yet!)</em>";
|
|
break;
|
|
case "+": // Shows a file gallery for subpages with files
|
|
// If the upload module isn't present, then there's no point
|
|
// in checking for uploaded files
|
|
if(!module_exists("feature-upload"))
|
|
break;
|
|
|
|
$variableValue = [];
|
|
$subpages = get_subpages($pageindex, $env->page);
|
|
foreach($subpages as $pagename => $depth)
|
|
{
|
|
// Make sure that this is an uploaded file
|
|
if(!$pageindex->$pagename->uploadedfile)
|
|
continue;
|
|
|
|
$mime_type = $pageindex->$pagename->uploadedfilemime;
|
|
|
|
$previewSize = 300;
|
|
$previewUrl = "?action=preview&size=$previewSize&page=" . rawurlencode($pagename);
|
|
|
|
$previewHtml = "";
|
|
switch(substr($mime_type, 0, strpos($mime_type, "/")))
|
|
{
|
|
case "video":
|
|
$previewHtml .= "<video src='$previewUrl' controls preload='metadata'>$pagename</video>\n";
|
|
break;
|
|
case "audio":
|
|
$previewHtml .= "<audio src='$previewUrl' controls preload='metadata'>$pagename</audio>\n";
|
|
break;
|
|
case "application":
|
|
case "image":
|
|
default:
|
|
$previewHtml .= "<img src='$previewUrl' />\n";
|
|
break;
|
|
}
|
|
$previewHtml = "<a href='?page=" . rawurlencode($pagename) . "'>$previewHtml$pagename</a>";
|
|
|
|
$variableValue[$pagename] = "<li style='min-width: $previewSize" . "px; min-height: $previewSize" . "px;'>$previewHtml</li>";
|
|
}
|
|
|
|
if(count($variableValue) === 0)
|
|
$variableValue["default"] = "<li><em>(No files found)</em></li>\n";
|
|
$variableValue = implode("\n", $variableValue);
|
|
$variableValue = "<ul class='file-gallery'>$variableValue</ul>";
|
|
break;
|
|
}
|
|
if(isset($params[$variableKey]))
|
|
{
|
|
$variableValue = $params[$variableKey];
|
|
$variableValue = $this->escapeText($variableValue);
|
|
}
|
|
|
|
if($variableValue !== false)
|
|
{
|
|
return [
|
|
"extent" => strlen($matches[0]),
|
|
"markup" => $variableValue
|
|
];
|
|
}
|
|
}
|
|
else if(preg_match("/\{\{([^}]+)\}\}/", $fragment["text"], $matches))
|
|
{
|
|
$templateElement = $this->templateHandler($matches[1]);
|
|
|
|
if(!empty($templateElement))
|
|
{
|
|
return [
|
|
"extent" => strlen($matches[0]),
|
|
"element" => $templateElement
|
|
];
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Handles parsing out templates - recursively - and the parameter stack associated with it.
|
|
* @param string $source The source string to process.
|
|
* @return array The parsed result
|
|
*/
|
|
protected function templateHandler($source)
|
|
{
|
|
global $pageindex, $env;
|
|
|
|
|
|
$parts = preg_split("/\\||¦/", trim($source, "{}"));
|
|
$parts = array_map("trim", $parts);
|
|
|
|
// Extract the name of the template page
|
|
$templatePagename = array_shift($parts);
|
|
// If the page that we are supposed to use as the tempalte doesn't
|
|
// exist, then there's no point in continuing.
|
|
if(empty($pageindex->$templatePagename))
|
|
return false;
|
|
|
|
// Parse the parameters
|
|
$params = [];
|
|
$i = 0;
|
|
foreach($parts as $part)
|
|
{
|
|
if(strpos($part, "=") !== false)
|
|
{
|
|
// This param contains an equals sign, so it's a named parameter
|
|
$keyValuePair = explode("=", $part, 2);
|
|
$keyValuePair = array_map("trim", $keyValuePair);
|
|
$params[$keyValuePair[0]] = $keyValuePair[1];
|
|
}
|
|
else
|
|
{
|
|
// This isn't a named parameter
|
|
$params["$i"] = trim($part);
|
|
|
|
$i++;
|
|
}
|
|
}
|
|
// Add the parsed parameters to the parameter stack
|
|
$this->paramStack[] = [
|
|
"pagename" => $templatePagename,
|
|
"params" => $params
|
|
];
|
|
|
|
$templateFilePath = $env->storage_prefix . $pageindex->$templatePagename->filename;
|
|
|
|
$parsedTemplateSource = $this->text(file_get_contents($templateFilePath));
|
|
|
|
// Remove the parsed parameters from the stack
|
|
array_pop($this->paramStack);
|
|
|
|
return [
|
|
"name" => "div",
|
|
"rawHtml" => $parsedTemplateSource,
|
|
"attributes" => [
|
|
"class" => "template"
|
|
]
|
|
];
|
|
}
|
|
|
|
/*
|
|
* ██ ███ ██ ████████ ███████ ██████ ███ ██ █████ ██
|
|
* ██ ████ ██ ██ ██ ██ ██ ████ ██ ██ ██ ██
|
|
* ██ ██ ██ ██ ██ █████ ██████ ██ ██ ██ ███████ ██
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
* ██ ██ ████ ██ ███████ ██ ██ ██ ████ ██ ██ ███████
|
|
*
|
|
* ██ ██ ███ ██ ██ ██ ███████
|
|
* ██ ██ ████ ██ ██ ██ ██
|
|
* ██ ██ ██ ██ ██ █████ ███████
|
|
* ██ ██ ██ ██ ██ ██ ██ ██
|
|
* ███████ ██ ██ ████ ██ ██ ███████
|
|
*/
|
|
/**
|
|
* Parses internal links
|
|
* @param string $fragment The fragment to parse.
|
|
*/
|
|
protected function inlineInternalLink($fragment)
|
|
{
|
|
global $pageindex, $env;
|
|
|
|
if(preg_match('/^\[\[([^\]]*)\]\]([^\s!?",;.()\[\]{}*=+\/]*)/u', $fragment["text"], $matches) === 1) {
|
|
// 1: Parse parameters out
|
|
// -------------------------------
|
|
$link_page = trim($matches[1]);
|
|
$display = $link_page . trim($matches[2]);
|
|
if(strpos($matches[1], "|") !== false || strpos($matches[1], "¦") !== false)
|
|
{
|
|
// We have a bar character
|
|
$parts = preg_split("/\\||¦/", $matches[1], 2);
|
|
$link_page = trim($parts[0]); // The page to link to
|
|
$display = trim($parts[1]); // The text to display
|
|
}
|
|
|
|
|
|
// 2: Parse the hash out
|
|
// -------------------------------
|
|
$hash_code = "";
|
|
if(strpos($link_page, "#") !== false)
|
|
{
|
|
// We want to link to a subsection of a page
|
|
$hash_code = substr($link_page, strpos($link_page, "#") + 1);
|
|
$link_page = substr($link_page, 0, strpos($link_page, "#"));
|
|
|
|
// If $link_page is empty then we want to link to the current page
|
|
if(strlen($link_page) === 0)
|
|
$link_page = $env->page;
|
|
}
|
|
|
|
|
|
// 3: Page name auto-correction
|
|
// -------------------------------
|
|
$is_interwiki_link = module_exists("feature-interwiki-links") && is_interwiki_link($link_page);
|
|
// Try different variants on the pagename to try and get it to
|
|
// match something automagically
|
|
if(!$is_interwiki_link && empty($pageindex->$link_page))
|
|
$link_page = parsedown_pagename_resolve($link_page);
|
|
|
|
|
|
// 4: Construct the full url
|
|
// -------------------------------
|
|
$link_url = null;
|
|
// If it's an interwiki link, then handle it as such
|
|
if($is_interwiki_link)
|
|
$link_url = interwiki_get_pagename_url($link_page);
|
|
|
|
// If it isn't (or it failed), then try it as a normal link instead
|
|
if(empty($link_url)) {
|
|
$link_url = str_replace(
|
|
"%s", rawurlencode($link_page),
|
|
$this->internalLinkBase
|
|
);
|
|
// We failed to handle it as an interwiki link, so we should
|
|
// tell everyone that
|
|
$is_interwiki_link = false;
|
|
}
|
|
|
|
// 5: Construct the title
|
|
// -------------------------------
|
|
$title = $link_page;
|
|
if($is_interwiki_link)
|
|
$title = interwiki_pagename_resolve($link_page)->name . ": " . interwiki_pagename_parse($link_page)[1] . " (Interwiki)";
|
|
|
|
if(strlen($hash_code) > 0)
|
|
$link_url .= "#$hash_code";
|
|
|
|
|
|
// 6: Result encoding
|
|
// -------------------------------
|
|
$result = [
|
|
"extent" => strlen($matches[0]),
|
|
"element" => [
|
|
"name" => "a",
|
|
"text" => $display,
|
|
|
|
"attributes" => [
|
|
"href" => $link_url,
|
|
"title" => $title
|
|
]
|
|
]
|
|
];
|
|
|
|
// Attach some useful classes based on how we handled it
|
|
$class_list = [];
|
|
// Interwiki links can never be redlinks
|
|
if(!$is_interwiki_link && empty($pageindex->{makepathsafe($link_page)}))
|
|
$class_list[] = "redlink";
|
|
if($is_interwiki_link)
|
|
$class_list[] = "interwiki_link";
|
|
|
|
$result["element"]["attributes"]["class"] = implode(" ", $class_list);
|
|
|
|
return $result;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* ███████ ██ ██ ████████ ███████ ███ ██ ██████ ███████ ██████
|
|
* ██ ██ ██ ██ ██ ████ ██ ██ ██ ██ ██ ██
|
|
* █████ ███ ██ █████ ██ ██ ██ ██ ██ █████ ██ ██
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
* ███████ ██ ██ ██ ███████ ██ ████ ██████ ███████ ██████
|
|
*
|
|
* ██ ███ ███ █████ ██████ ███████ ███████
|
|
* ██ ████ ████ ██ ██ ██ ██ ██
|
|
* ██ ██ ████ ██ ███████ ██ ███ █████ ███████
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
* ██ ██ ██ ██ ██ ██████ ███████ ███████
|
|
*/
|
|
/**
|
|
* Parses the extended image syntax.
|
|
* @param string $fragment The source fragment to parse.
|
|
*/
|
|
protected function inlineExtendedImage($fragment)
|
|
{
|
|
global $pageindex;
|
|
|
|
if(preg_match('/^!\[(.*)\]\(([^|¦)]+)\s*(?:(?:\||¦)([^|¦)]*))?(?:(?:\||¦)([^|¦)]*))?(?:(?:\||¦)([^)]*))?\)/', $fragment["text"], $matches))
|
|
{
|
|
/*
|
|
* 0 - Everything
|
|
* 1 - Alt text
|
|
* 2 - Url
|
|
* 3 - First param (optional)
|
|
* 4 - Second param (optional)
|
|
* 5 - Third param (optional)
|
|
*/
|
|
$altText = $matches[1];
|
|
$imageUrl = trim(str_replace("&", "&", $matches[2])); // Decode & to allow it in preview urls
|
|
$param1 = empty($matches[3]) ? false : strtolower(trim($matches[3]));
|
|
$param2 = empty($matches[4]) ? false : strtolower(trim($matches[4]));
|
|
$param3 = empty($matches[5]) ? false : strtolower(trim($matches[5]));
|
|
$floatDirection = false;
|
|
$imageSize = false;
|
|
$imageCaption = false;
|
|
$shortImageUrl = false;
|
|
|
|
if($this->isFloatValue($param1))
|
|
{
|
|
// Param 1 is a valid css float: ... value
|
|
$floatDirection = $param1;
|
|
$imageSize = $this->parseSizeSpec($param2);
|
|
}
|
|
else if($this->isFloatValue($param2))
|
|
{
|
|
// Param 2 is a valid css float: ... value
|
|
$floatDirection = $param2;
|
|
$imageSize = $this->parseSizeSpec($param1);
|
|
}
|
|
else if($this->isFloatValue($param3))
|
|
{
|
|
$floatDirection = $param3;
|
|
$imageSize = $this->parseSizeSpec($param1);
|
|
}
|
|
else if($param1 === false and $param2 === false)
|
|
{
|
|
// Neither params were specified
|
|
$floatDirection = false;
|
|
$imageSize = false;
|
|
}
|
|
else
|
|
{
|
|
// Neither of them are floats, but at least one is specified
|
|
// This must mean that the first param is a size spec like
|
|
// 250x128.
|
|
$imageSize = $this->parseSizeSpec($param1);
|
|
}
|
|
|
|
if($param1 !== false && strtolower(trim($param1)) == "caption")
|
|
$imageCaption = true;
|
|
if($param2 !== false && strtolower(trim($param2)) == "caption")
|
|
$imageCaption = true;
|
|
if($param3 !== false && strtolower(trim($param3)) == "caption")
|
|
$imageCaption = true;
|
|
|
|
//echo("Image url: $imageUrl, Pageindex entry: " . var_export(isset($pageindex->$imageUrl), true) . "\n");
|
|
|
|
if(isset($pageindex->$imageUrl) and $pageindex->$imageUrl->uploadedfile)
|
|
{
|
|
// We have a short url! Expand it.
|
|
$shortImageUrl = $imageUrl;
|
|
$imageUrl = "index.php?action=preview&size=" . max($imageSize["x"], $imageSize["y"]) ."&page=" . rawurlencode($imageUrl);
|
|
}
|
|
|
|
$style = "";
|
|
if($imageSize !== false)
|
|
$style .= " max-width: " . $imageSize["x"] . "px; max-height: " . $imageSize["y"] . "px;";
|
|
if($floatDirection)
|
|
$style .= " float: $floatDirection;";
|
|
|
|
$urlExtension = pathinfo($imageUrl, PATHINFO_EXTENSION);
|
|
$urlType = system_extension_mime_type($urlExtension);
|
|
$result = [];
|
|
switch(substr($urlType, 0, strpos($urlType, "/")))
|
|
{
|
|
case "audio":
|
|
$result = [
|
|
"extent" => strlen($matches[0]),
|
|
"element" => [
|
|
"name" => "audio",
|
|
"text" => $altText,
|
|
"attributes" => [
|
|
"src" => $imageUrl,
|
|
"controls" => "controls",
|
|
"preload" => "metadata",
|
|
"style" => trim($style)
|
|
]
|
|
]
|
|
];
|
|
break;
|
|
case "video":
|
|
$result = [
|
|
"extent" => strlen($matches[0]),
|
|
"element" => [
|
|
"name" => "video",
|
|
"text" => $altText,
|
|
"attributes" => [
|
|
"src" => $imageUrl,
|
|
"controls" => "controls",
|
|
"preload" => "metadata",
|
|
"style" => trim($style)
|
|
]
|
|
]
|
|
];
|
|
break;
|
|
case "image":
|
|
default:
|
|
// If we can't work out what it is, then assume it's an image
|
|
$result = [
|
|
"extent" => strlen($matches[0]),
|
|
"element" => [
|
|
"name" => "img",
|
|
"attributes" => [
|
|
"src" => $imageUrl,
|
|
"alt" => $altText,
|
|
"title" => $altText,
|
|
"style" => trim($style)
|
|
]
|
|
]
|
|
];
|
|
break;
|
|
}
|
|
|
|
// ~ Image linker ~
|
|
|
|
$imageHref = $shortImageUrl !== false ? "?page=" . rawurlencode($shortImageUrl) : $imageUrl;
|
|
$result["element"] = [
|
|
"name" => "a",
|
|
"attributes" => [
|
|
"href" => $imageHref
|
|
],
|
|
"text" => [$result["element"]],
|
|
"handler" => "elements"
|
|
];
|
|
|
|
// ~
|
|
|
|
if($imageCaption) {
|
|
$rawStyle = $result["element"]["text"][0]["attributes"]["style"];
|
|
$containerStyle = preg_replace('/^.*float/', "float", $rawStyle);
|
|
$mediaStyle = preg_replace('/\s*float.*;/', "", $rawStyle);
|
|
$result["element"] = [
|
|
"name" => "figure",
|
|
"attributes" => [
|
|
"style" => $containerStyle
|
|
],
|
|
"text" => [
|
|
$result["element"],
|
|
[
|
|
"name" => "figcaption",
|
|
"text" => $altText
|
|
],
|
|
],
|
|
"handler" => "elements"
|
|
];
|
|
$result["element"]["text"][0]["attributes"]["style"] = $mediaStyle;
|
|
}
|
|
return $result;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* ██████ ██████ ██████ ███████ ██████ ██ ██████ ██████ ██ ██
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
* ██ ██ ██ ██ ██ █████ ██████ ██ ██ ██ ██ █████
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
* ██████ ██████ ██████ ███████ ██████ ███████ ██████ ██████ ██ ██
|
|
*
|
|
* ██ ██ ██████ ██████ ██████ █████ ██████ ███████
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
* ██ ██ ██████ ██ ███ ██████ ███████ ██ ██ █████
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
* ██████ ██ ██████ ██ ██ ██ ██ ██████ ███████
|
|
*/
|
|
|
|
protected function blockFencedCodeComplete($block) {
|
|
global $settings;
|
|
$result = parent::blockFencedCodeComplete($block);
|
|
|
|
$language = preg_replace("/^language-/", "", $block["element"]["element"]["attributes"]["class"]);
|
|
|
|
if(!isset($settings->parser_ext_renderers->$language))
|
|
return $result;
|
|
|
|
$text = $result["element"]["element"]["text"];
|
|
$renderer = $settings->parser_ext_renderers->$language;
|
|
|
|
$result["element"] = [
|
|
"name" => "img",
|
|
"attributes" => [
|
|
"alt" => "Diagram rendered by {$renderer->name}",
|
|
"src" => "?action=parsedown-render-ext&language=$language&immutable_key=".hash("crc32b", json_encode($renderer))."&source=".rawurlencode($text)
|
|
]
|
|
];
|
|
|
|
return $result;
|
|
}
|
|
|
|
/*
|
|
* ██ ██ ███████ █████ ██████ ███████ ██████
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
* ███████ █████ ███████ ██ ██ █████ ██████
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
* ██ ██ ███████ ██ ██ ██████ ███████ ██ ██
|
|
*/
|
|
|
|
private $headingIdsUsed = [];
|
|
|
|
protected function blockHeader($line) {
|
|
// This function overrides the header function defined in ParsedownExtra
|
|
$result = parent::blockHeader($line);
|
|
|
|
// If this heading doesn't have an id already, add an automatic one
|
|
if(!isset($result["element"]["attributes"]["id"])) {
|
|
$heading_id = str_replace(" ", "-",
|
|
mb_strtolower(makepathsafe(
|
|
$result["element"]["handler"]["argument"]
|
|
))
|
|
);
|
|
$suffix = "";
|
|
while(in_array($heading_id . $suffix, $this->headingIdsUsed)) {
|
|
$heading_number = intval(str_replace("_", "", $suffix));
|
|
if($heading_number == 0) $heading_number++;
|
|
$suffix = "_" . ($heading_number + 1);
|
|
}
|
|
$result["element"]["attributes"]["id"] = $heading_id . $suffix;
|
|
$this->headingIdsUsed[] = $result["element"]["attributes"]["id"];
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
# ~
|
|
# Static Methods
|
|
# ~
|
|
|
|
/**
|
|
* Extracts the page names from internal links in a given markdown source.
|
|
* Does not actually _parse_ the source - only extracts via a regex.
|
|
* @param string $page_text The source text to extract a list of page names from.
|
|
* @return array A list of page names that the given source text links to.
|
|
*/
|
|
public static function extract_page_names($page_text) {
|
|
global $pageindex;
|
|
preg_match_all("/\[\[([^\]]+)\]\]/", $page_text, $linked_pages);
|
|
if(count($linked_pages[1]) === 0)
|
|
return []; // No linked pages here
|
|
|
|
$result = [];
|
|
foreach($linked_pages[1] as $linked_page) {
|
|
// Strip everything after the | and the #
|
|
if(strpos($linked_page, "|") !== false)
|
|
$linked_page = substr($linked_page, 0, strpos($linked_page, "|"));
|
|
if(strpos($linked_page, "#") !== false)
|
|
$linked_page = substr($linked_page, 0, strpos($linked_page, "#"));
|
|
if(strlen($linked_page) === 0)
|
|
continue;
|
|
// Make sure we try really hard to find this page in the
|
|
// pageindex
|
|
$altered_linked_page = $linked_page;
|
|
if(!empty($pageindex->{ucfirst($linked_page)}))
|
|
$altered_linked_page = ucfirst($linked_page);
|
|
else if(!empty($pageindex->{ucwords($linked_page)}))
|
|
$altered_linked_page = ucwords($linked_page);
|
|
else // Our efforts were in vain, so reset to the original
|
|
$altered_linked_page = $linked_page;
|
|
|
|
$result[] = $altered_linked_page;
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
|
|
/*
|
|
* ██ ██ ████████ ██ ██ ██ ████████ ██ ███████ ███████
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ █████ ███████
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
* ██████ ██ ██ ███████ ██ ██ ██ ███████ ███████
|
|
*/
|
|
|
|
/**
|
|
* Returns whether a string is a valid float: XXXXXX; value.
|
|
* Used in parsing the extended image syntax.
|
|
* @param string $value The value check.
|
|
* @return bool Whether it's valid or not.
|
|
*/
|
|
private function isFloatValue(string $value)
|
|
{
|
|
return in_array(strtolower($value), [ "left", "right" ]);
|
|
}
|
|
|
|
/**
|
|
* Parses a size specifier into an array.
|
|
* @param string $text The source text to parse. e.g. "256x128"
|
|
* @return array|bool The parsed size specifier. Example: ["x" => 256, "y" => 128]. Returns false if parsing failed.
|
|
*/
|
|
private function parseSizeSpec(string $text)
|
|
{
|
|
if(strpos($text, "x") === false)
|
|
return false;
|
|
$parts = explode("x", $text, 2);
|
|
|
|
if(count($parts) != 2)
|
|
return false;
|
|
|
|
array_map("trim", $parts);
|
|
array_map("intval", $parts);
|
|
|
|
if(in_array(0, $parts))
|
|
return false;
|
|
|
|
return [
|
|
"x" => $parts[0],
|
|
"y" => $parts[1]
|
|
];
|
|
}
|
|
|
|
/**
|
|
* Escapes the source text via htmlentities.
|
|
* @param string $text The text to escape.
|
|
* @return string The escaped string.
|
|
*/
|
|
protected function escapeText($text)
|
|
{
|
|
return htmlentities($text, ENT_COMPAT | ENT_HTML5);
|
|
}
|
|
|
|
/**
|
|
* Sets the base url to be used for internal links. '%s' will be replaced
|
|
* with a URL encoded version of the page name.
|
|
* @param string $url The url to use when parsing internal links.
|
|
*/
|
|
public function setInternalLinkBase($url)
|
|
{
|
|
$this->internalLinkBase = $url;
|
|
}
|
|
}
|
|
|
|
?>
|